Speaker
Thomas Gajdosik
(Fizikos Institutas and Vilnius University)
Description
Nonlinear gauge fixing is used for checking the internal consistencies of automated
calculations. We implement the nonlinear gauge fixing, as proposed by Boudjema and
Chopin, into FeynArts. We have to modify not only the model files, but also the
Lorentz.gen file, as the nonlinear gauge fixing introduces terms that are not
contained in the standard form for the vertices. We check our modifications by
checking amplitudes analytically and by performing tree level and one loop calculations.
Primary authors
Jurgis Pasukonis
(Vilnius University)
Thomas Gajdosik
(Fizikos Institutas and Vilnius University)
